The present disclosure is directed to a fast load transient response power supply system using dynamic reference voltage generation. A system may comprise, for example, at least power supply circuitry, voltage reference circuitry and dynamic reference generation circuitry. The power supply circuitry may be configured to generate an output voltage (e.g., for driving a load) based on a power supply input voltage. The voltage reference circuitry may be configured to generate a reference voltage for use in controlling the generation of the output voltage. The dynamic reference generation circuitry may be configured to generate a dynamic reference voltage as the input voltage for the power supply circuitry based on the reference voltage and the output voltage.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A device, comprising: power supply circuitry configured to generate an output voltage for driving a load, the output voltage being generated based on an input voltage; voltage reference circuitry configured to provide a reference voltage that is variable to control the output voltage of the power supply circuitry; and dynamic reference generation circuitry configured to generate a dynamic reference voltage as the input voltage for the power supply circuitry based on the output voltage and the reference voltage, wherein the dynamic reference generation circuitry comprises reference comparison circuitry including at least an amplifier configured to generate a reference comparison voltage based on the output voltage and the reference voltage.
A power supply device includes power supply circuitry that generates an output voltage to drive a load, based on an input voltage. Voltage reference circuitry provides a variable reference voltage to control the output voltage. Dynamic reference generation circuitry creates a dynamic reference voltage, used as the power supply circuitry's input voltage, based on both the output voltage and the reference voltage. This dynamic reference generation includes reference comparison circuitry with an amplifier that generates a reference comparison voltage based on the output voltage and the reference voltage.
2. The device of claim 1 , wherein the reference comparison circuitry is configured to generate a positive reference comparison voltage based on the difference between the output voltage and the reference voltage when the output voltage is less than the reference voltage and to generate a negative reference comparison voltage based on the difference between the output voltage and the reference voltage when the output voltage is greater than the reference voltage.
In the power supply device, the reference comparison circuitry generates a positive voltage if the output voltage is less than the reference voltage, representing the difference between them. Conversely, it generates a negative voltage if the output voltage is greater than the reference voltage, also based on their difference. This allows the system to dynamically adjust to output voltage fluctuations relative to the target reference. This overall design (power supply circuitry that generates an output voltage to drive a load, based on an input voltage; voltage reference circuitry provides a variable reference voltage to control the output voltage; and dynamic reference generation circuitry creates a dynamic reference voltage, used as the power supply circuitry's input voltage, based on both the output voltage and the reference voltage. This dynamic reference generation includes reference comparison circuitry with an amplifier that generates a reference comparison voltage based on the output voltage and the reference voltage) provides a fast load transient response.
3. The device of claim 1 , wherein the dynamic reference generation circuitry further comprises a resister-capacitor network coupled to an input of the amplifier in the reference comparison circuitry, the resistor-capacitor network being configured to AC-couple the output voltage to the amplifier input and DC-couple the reference voltage to the amplifier input.
In the power supply device, the dynamic reference generation circuitry includes a resistor-capacitor (RC) network connected to the amplifier's input within the reference comparison circuitry. This RC network AC-couples the output voltage to the amplifier input, allowing changes in the output voltage to quickly affect the dynamic reference, while DC-coupling the reference voltage, ensuring a stable baseline. This allows the reference comparison circuitry to generate a reference comparison voltage based on the output voltage and the reference voltage. The core system design (power supply circuitry that generates an output voltage to drive a load, based on an input voltage; voltage reference circuitry provides a variable reference voltage to control the output voltage; and dynamic reference generation circuitry creates a dynamic reference voltage, used as the power supply circuitry's input voltage, based on both the output voltage and the reference voltage) ensures a fast load transient response.
4. The device of claim 1 , wherein the dynamic reference generation circuitry further comprises summing circuitry, the summing circuitry being configured to generate the dynamic reference voltage as input to the power supply circuitry based on adding the reference comparison voltage to the reference voltage.
In the power supply device, the dynamic reference generation circuitry also includes summing circuitry. This summing circuitry adds the reference comparison voltage (generated by comparing the output voltage and the reference voltage) to the reference voltage to generate the dynamic reference voltage, which is then fed as input to the power supply circuitry. This combination of voltages creates a dynamically adjusted reference point. The core system design (power supply circuitry that generates an output voltage to drive a load, based on an input voltage; voltage reference circuitry provides a variable reference voltage to control the output voltage; and dynamic reference generation circuitry creates a dynamic reference voltage, used as the power supply circuitry's input voltage, based on both the output voltage and the reference voltage) aims for a fast load transient response.
5. The device of claim 4 , wherein the power supply circuitry further comprises error comparator or error amplifier circuitry, control logic circuitry and feedback network circuitry, the error amplifier circuitry being configured to generate a logical input to the control logic circuitry based on the dynamic reference voltage and a feedback voltage provided by the feedback network circuitry.
In the power supply device, the power supply circuitry uses error comparator or error amplifier circuitry, control logic circuitry, and feedback network circuitry. The error amplifier circuitry compares the dynamic reference voltage (which is based on the reference voltage and the output voltage) to a feedback voltage provided by the feedback network and generates a logical input for the control logic circuitry. This feedback loop dynamically adjusts the power supply output. The core system design (power supply circuitry that generates an output voltage to drive a load, based on an input voltage; voltage reference circuitry provides a variable reference voltage to control the output voltage; and dynamic reference generation circuitry creates a dynamic reference voltage, used as the power supply circuitry's input voltage, based on both the output voltage and the reference voltage) is designed for fast load transient response.
6. The device of claim 5 , wherein the error comparator or error amplifier circuitry is configured to generate a high logical input when the dynamic reference voltage is greater than the feedback voltage and to generate a low logical input when the dynamic reference voltage is less than the feedback voltage.
In the power supply device, the error comparator or error amplifier circuitry generates a high logical input when the dynamic reference voltage (based on the output and reference voltages) is greater than the feedback voltage. Conversely, it generates a low logical input when the dynamic reference voltage is less than the feedback voltage. This binary signal drives the control logic. The power supply circuitry also uses control logic circuitry and feedback network circuitry, and generates a logical input to the control logic circuitry based on the dynamic reference voltage and a feedback voltage. The core design (power supply circuitry that generates an output voltage to drive a load, based on an input voltage; voltage reference circuitry that provides a variable reference voltage to control the output voltage; and dynamic reference generation circuitry that creates a dynamic reference voltage, used as the power supply circuitry's input voltage, based on both the output voltage and the reference voltage) ensures a fast load transient response.
7. The device of claim 6 , wherein the power supply circuitry further comprises power stage circuitry coupled to an inductor configured to generate the output voltage, the power stage circuitry being configured to engage a power source to supply a voltage to the inductor when the logical input is high and to disengage the power source from supplying the voltage to the inductor when the logical input is low.
In the power supply device, the power supply circuitry also includes power stage circuitry connected to an inductor, which generates the output voltage. The power stage circuitry engages a power source to supply voltage to the inductor when the logical input from the error amplifier (comparing dynamic reference and feedback voltages) is high, charging the inductor. It disengages the power source when the logical input is low, allowing the inductor to discharge. The error amplifier circuitry is configured to generate a high logical input when the dynamic reference voltage is greater than the feedback voltage and to generate a low logical input when the dynamic reference voltage is less than the feedback voltage. This on/off action controls the output voltage.
8. The device of claim 7 , wherein the feedback voltage circuitry is configured to generate the feedback voltage based on the voltage supplied to the inductor and the output voltage.
In the power supply device, the feedback voltage circuitry generates the feedback voltage based on the voltage supplied to the inductor and the output voltage. This feedback loop informs the error amplifier (comparing dynamic reference and feedback voltages) about the current state of both the inductor and the final output, allowing for precise control. The power stage circuitry is coupled to an inductor configured to generate the output voltage and is configured to engage/disengage a power source from supplying a voltage to the inductor when the logical input (from the error amplifier) is high/low.
9. A method, comprising: receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
A method for dynamically controlling power supply output involves: receiving a variable reference voltage (to control the power supply's output) and the current output voltage from the power supply circuitry; generating a reference comparison voltage based on these two voltages; generating a dynamic reference voltage based on the reference comparison voltage and the original reference voltage; providing this dynamic reference voltage as input to the power supply circuitry; and finally, generating the output voltage within the power supply circuitry based on this dynamic reference voltage.
10. The method of claim 9 , wherein generating the reference comparison voltage comprises: generating a positive reference comparison voltage based on the difference between the output voltage and the reference voltage when the output voltage is less than the reference voltage; and generating a negative reference comparison voltage based on the difference between the output voltage and the reference voltage when the output voltage is greater than the reference voltage.
In the power supply control method, generating the reference comparison voltage involves: generating a positive voltage representing the difference when the output voltage is less than the reference voltage; and generating a negative voltage representing the difference when the output voltage is greater than the reference voltage. This creates a bipolar signal that represents the error between the desired and actual output. The overall method comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
11. The method of claim 9 , wherein generating the dynamic reference voltage comprises adding the reference comparison voltage to the reference voltage.
In the power supply control method, generating the dynamic reference voltage involves simply adding the reference comparison voltage (representing the error between the desired and actual output) to the original reference voltage. This creates a dynamically adjusted reference point for the power supply circuitry. The overall method comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
12. The method of claim 9 , wherein generating the output voltage comprises generating a logical input based on the dynamic reference voltage and a feedback voltage.
In the power supply control method, generating the output voltage comprises generating a logical input (high or low) based on a comparison of the dynamic reference voltage (dynamically adjusted reference) and a feedback voltage. This logical input will be used to control the power supply's switching behavior. The overall method comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
13. The method of claim 12 , wherein generating the logical input comprises: generating a high logical input when the dynamic reference voltage is greater than the feedback voltage; and generating a low logical input is generated when the dynamic reference voltage is less than the feedback voltage.
In the power supply control method, generating the logical input involves: generating a high logical input when the dynamic reference voltage (dynamically adjusted) is greater than the feedback voltage; and generating a low logical input when the dynamic reference voltage is less than the feedback voltage. This creates a simple on/off control signal. Generating the output voltage comprises generating a logical input based on the dynamic reference voltage and a feedback voltage. The overall method comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
14. The method of claim 13 , wherein generating the output voltage further comprises engaging a power source to charge an inductor in the power supply circuitry when the logical input is high and disengaging the power source from charging the inductor when the logical input is low.
In the power supply control method, generating the output voltage also includes engaging a power source to charge an inductor in the power supply circuitry when the logical input (from the voltage comparison) is high, and disengaging the power source from charging the inductor when the logical input is low. This on/off switching action ultimately controls the power supply's output. Generating the logical input comprises generating a high logical input when the dynamic reference voltage is greater than the feedback voltage and generating a low logical input is generated when the dynamic reference voltage is less than the feedback voltage. The method starts with receiving a variable reference voltage and the current output voltage; generating a reference comparison voltage based on these two voltages; generating a dynamic reference voltage based on the reference comparison voltage and the original reference voltage; and providing this dynamic reference voltage as input to the power supply circuitry.
15. At least one machine-readable storage medium having stored thereon, individually or in combination, instructions that when executed by one or more processors result in the following operations comprising: receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
A machine-readable storage medium stores instructions that, when executed, perform a power supply control method comprising: receiving a variable reference voltage (to control the power supply's output) and the current output voltage from the power supply circuitry; generating a reference comparison voltage based on these two voltages; generating a dynamic reference voltage based on the reference comparison voltage and the original reference voltage; providing this dynamic reference voltage as input to the power supply circuitry; and finally, generating the output voltage within the power supply circuitry based on this dynamic reference voltage.
16. The medium of claim 15 , wherein generating the reference comparison voltage comprises: generating a positive reference comparison voltage based on the difference between the output voltage and the reference voltage when the output voltage is less than the reference voltage; and generating a negative reference comparison voltage based on the difference between the output voltage and reference voltage when the output voltage is greater than the reference voltage.
The storage medium's power supply control method includes generating the reference comparison voltage by: generating a positive voltage representing the difference when the output voltage is less than the reference voltage; and generating a negative voltage representing the difference when the output voltage is greater than the reference voltage. This creates a bipolar signal that represents the error between the desired and actual output. The overall method, stored on the medium, comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
17. The medium of claim 15 , wherein generating the dynamic reference voltage comprises adding the reference comparison voltage to the reference voltage.
The storage medium's power supply control method includes generating the dynamic reference voltage by adding the reference comparison voltage (representing the error between the desired and actual output) to the original reference voltage. This creates a dynamically adjusted reference point for the power supply circuitry. The overall method, stored on the medium, comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
18. The medium of claim 15 , wherein generating the output voltage comprises generating a logical input based on the dynamic reference voltage and a feedback voltage.
The storage medium's power supply control method includes generating the output voltage by generating a logical input (high or low) based on a comparison of the dynamic reference voltage (dynamically adjusted reference) and a feedback voltage. This logical input will be used to control the power supply's switching behavior. The overall method, stored on the medium, comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
19. The medium of claim 18 , wherein generating the logical input comprises: generating a high logical input when the dynamic reference voltage is greater than the feedback voltage; and generating a low logical input is generated when the dynamic reference voltage is less than the feedback voltage.
The storage medium's power supply control method includes generating the logical input by: generating a high logical input when the dynamic reference voltage (dynamically adjusted) is greater than the feedback voltage; and generating a low logical input when the dynamic reference voltage is less than the feedback voltage. This creates a simple on/off control signal. Generating the output voltage comprises generating a logical input based on the dynamic reference voltage and a feedback voltage. The overall method, stored on the medium, comprises receiving a reference voltage that is variable to control the output voltage of power supply circuitry and an output voltage from the power supply circuitry; generating a reference comparison voltage based on the reference voltage and the output voltage; generating a dynamic reference voltage based on the reference comparison voltage and the reference voltage; providing the dynamic reference voltage as input to the power supply circuitry; and generating the output voltage in the power supply circuitry based on the dynamic reference voltage.
20. The medium of claim 19 , wherein generating the output voltage further comprises engaging a power source to charge an inductor in the power supply circuitry when the logical input is high and disengaging the power source from charging the inductor when the logical input is low.
The storage medium's power supply control method includes generating the output voltage also including engaging a power source to charge an inductor in the power supply circuitry when the logical input (from the voltage comparison) is high, and disengaging the power source from charging the inductor when the logical input is low. This on/off switching action ultimately controls the power supply's output. Generating the logical input comprises generating a high logical input when the dynamic reference voltage is greater than the feedback voltage and generating a low logical input is generated when the dynamic reference voltage is less than the feedback voltage. The method, stored on the medium, starts with receiving a variable reference voltage and the current output voltage; generating a reference comparison voltage based on these two voltages; generating a dynamic reference voltage based on the reference comparison voltage and the original reference voltage; and providing this dynamic reference voltage as input to the power supply circuitry.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
April 25, 2013
March 7, 2017
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.